bonjour
10 ⁻⁴ = 1 /10 ⁴ = 1 /10000 = 0.000 1
10 ⁻¹ = 1 /10 = 0.1
- 10 ⁻⁵ = - 1/10 ⁵ = - 0. 000 01
( -10 ) ⁻² = 1/100 = 0.01
